Aspartame
Description
Aspartame (CAS 22839-47-0), also identified by the designation E951, is a high-intensity artificial sweetener approximately 200 times sweeter than sucrose. It delivers sweetness at very low inclusion levels.
Used across food, beverage, and personal care manufacturing, it enables significant caloric reduction in finished products. In beverage formulation, it is a primary sweetener in diet sodas and flavored waters.
Powdered drink mixes often utilize this ingredient where sugar replacement is the core brief. Confectionery and dairy manufacturers use it in sugar-free chewing gums and tabletop sweetener blends.
It is also found in yogurts and desserts to meet low-calorie labeling requirements. It functions as a flavor enhancer in certain applications, where small additions sharpen perceived sweetness without contributing bulk.
In personal care, it appears in oral hygiene products such as toothpastes and mouthwashes as a taste-masking agent. Aspartame is supplied as a white crystalline powder in bulk bags, drums, and smaller formats.
Standard grades include food-grade specifications aligned with FCC, USP, and Ph. Eur. monographs. These quality standards ensure the product is suitable for both industrial and commercial-scale buyers.
Encapsulated forms are available for heat-processed applications where stability during baking is required. This variety allows manufacturers to maintain sweetness integrity throughout various production environments.
Physical Properties
| Melting Point | 246-247 °C |
| Boiling Point | 436.08°C (rough estimate) |
| Density | 1.2051 (rough estimate) |
| Appearance | white powder or tablets |
| Color | White |
| Odor | odorless with a sweet taste |
| Form | Powder |
| Water Solubility | Soluble in formic acid, dimethyl sulfoxide. Sparingly soluble in water and ethanol. |
| Refractive Index | 14.5 ° (C=4, 15mol/L Formic Acid) |
| pH | pH(8g/l, 25℃) : 4.5~6.0 |
| Log P | 0.542 (est) |
Trade & Regulatory
| HS Code | 38220090 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 2 |
Documentation
Other Names
methyl aspartylphenylalanate|L-aspartyl-L-phenylalanyl methyl ester|L-aspartyl-L-phenylalanine methyl ester|L-aspartyl-L-3-phenylalanine methyl ester|E 951|Aspartylphenylalanine methyl ester|3-amino-N-(α-methoxycarbonylphenethyl) succinamic acid|3-amino-N-(α-carboxyphenethyl)succinamic acid N-methyl ester|APM|E951
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